docs: def change_attributes(self, **kwargs):
          '''
          Change an attribute of this track and return a new copy.
          '''
          new_track = Track(self.viewconf['type'])
          new_track.position = self.position
          new_track.tileset = self.tileset
          new_track.viewconf = json.loads(json.dumps(self.viewconf))
          new_track.viewconf = {**new_track.viewconf, **kwargs}
  
          return new_track